Breaking capacity is 220 kA at 240 V, 154 kA at 415 V and 440 V, 121 kA at 500 V, and 17 kA at 690 V.
Overcurrent release and construction
The overcurrent release is a TM240 — a thermal-magnetic type with a fixed thermal pickup and magnetic trip calibrated for the 630 A frame. It's a 3-pole unit with no undervoltage release, no trip indicator, and no communication function. Power loss at full rated current is 192.9 W maximum. That's the heat you need to vent inside the enclosure — factor it into your thermal budget if you're packing multiple breakers in a single cabinet.
